How to detect Samsung laptop power adapter failure?

 Samsung AC adapter (Power adapter) is a small portable electronic devices and electronic power supply conversion equipment, generally it consist of the shell, power transformers and rectifier circuit, according to the type of output can be divided into AC output and DC output type; by connection Divided into wall-mounted and desktop type. Widely supporting the telephone machine, game consoles, language repeater, Walkman, notebook computers, cell phones and other equipment. How to detect  Samsung AD-4019,Samsung AP04214-UVBRJ,Samsung S22A330BW,Samsung AD-3014STN,Samsung PA-1250-96, Samsung AD-2612AUS laptop power adapter failure?


Step 1: First, gently shake the power connector or battery to check whether the power adapter or notebook battery is well connected, if not normal, try to reinstall the AC adapter or battery. Possible fault conditions are the deformation of the power connector or the drop in battery contact.

Step 2: If the power supply or battery connector is good, the multimeter can be used to measure the output voltage of the AC adapter or battery to see if the output voltage is stable and whether the actual output voltage matches the nominal voltage of the power supply. If the output is unstable or the actual output voltage Discrepancies with product specifications, you need to replace the damaged AC adapter or battery.

Step 3: If the above detection steps are normal, you can infer the failure in the laptop power board or motherboard, here to open the laptop shell, and check the power board and the motherboard are in good contact.

Step 4: If the power board and the battery are in good contact, then use the DIY commonly used replacement method to check the power board is normal, if not normal, it should be replaced.

Step 5: If the above method to confirm the power board, battery are normal, it can be inferred that the laptop motherboard or other main components damaged (such as the boot circuit fault), then repair or replace the motherboard.